Water effect can be created using dynamic objects like infinite planes, or simple geometry rectangles or specific shaped forms, for swimming pools, ponds or lakes.
Mirror reflection and normal mapping is needed to create the water effect.
Once you are ready to create water, and have place the right bump map and reflection values, just simply change the name of the material to water, and the
bump will generate an animated water effect.
Water shaders are included on RENDERLights